The looping of the template for the lagging strand enables a dimeric DNA polymerase III holoenzyme at the replication fork to synthesize both daughter strands. (Courtesy of A. Kornberg. From L. Stryer, Biochemistry, 4th ed.he 3â²âââ5â² exonuclease action of DNA polymerase III. Note that this exonuclease activity takes place at the 3â² end of the growing strand (and is therefore 3â²âââ5â²). The coordination of exonuclease activity with strand growth helps to explain why replication is in the 5â²âââ3â² direction.
McAllen is the twenty-first most populous city in Texas and the largest city in Hidalgo County, Texas. It is located at the southern tip of Texas in the Rio Grande Valley (not a geographical valley) and is part of the Southern United States.
In 2013, the median household income of McAllen residents was $40,651. McAllen households made slightly more than Celeste households ($40,625), Gallatin households ($40,625), Lefors households ($40,598), and Orchard households ($40,625) . However, 28.0% of McAllen residents live in poverty. The median age for McAllen residents is 32.7 years young.